| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 28 Dec 2022 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2022 | 09 Dec 2022 | 000-27205 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2022 | 31 Dec 2021 | 000-27205 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 20 Dec 2021 | ||
| SC 13D | Open Document | Open Filing | SC 13D | 20 Jul 2021 | ||
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2021 | 31 Dec 2020 | 000-27205 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2020 | 22 May 2020 | 000-27205 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2020 | 18 May 2020 | 000-27205 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2020 | 31 Dec 2019 | 000-27205 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Feb 2019 | 31 Dec 2018 | 000-27205 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Nov 2018 | 29 Nov 2018 | 000-27205 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Feb 2018 | 31 Dec 2017 | 000-27205 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2017 | 06 Dec 2017 | 000-27205 |
| 5/A | Open Document | Open Filing | FORM 5/A | 22 Feb 2017 | 31 Dec 2016 | 000-27205 |
| 5 | Open Document | Open Filing | FORM 5 | 14 Feb 2017 | 31 Dec 2016 | 000-27205 |
| 5 | Open Document | Open Filing | FORM 5 | 09 Feb 2016 | 31 Dec 2015 | 000-27205 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Dec 2015 | 04 Dec 2015 | 000-27205 |
| 5 | Open Document | Open Filing | FORM 5 | 10 Feb 2015 | 31 Dec 2014 | 000-27205 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Dec 2014 | 05 Dec 2014 | 000-27205 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Aug 2014 | 15 Aug 2014 | 000-27205 |
| 5 | Open Document | Open Filing | FORM 5 | 07 Feb 2014 | 13 Feb 2013 | 000-27205 |